John smith



(No Model.)

y J. SMITH. I Balng Press.

No.233,812. Patented O'ct. 26, 1880.

62/@f114/m-w, S14/www0@ Jojinfsmik. M iff fw I, Aim

Attamey.

UNITED STATES PATENT OFFICE..

JOHN SMITH, OF BALTIMORE, MARYLAND.

Muna-PRESS.

SPECIFICATION forming part of Letters Patent No. 233,812, dated October26, 1880.

V Application led September 1, 1880. (No model.)

To all whom it may concern:

Beit known that I, JOHN SMITH, of Baltimore city, State of Maryland,have invented certain new and useful Improvements in Balin g-Presses;and I hereby declare the same to be fully, clearly, and exactlydescribed as follows, reference being had to the accompanying drawings,in which- Figure'l is an end elevation of the press, and Fig. 2 is aside elevation ofthe chaindrum.

My invention relates to hay, straw, or cotton presses in general, and tothat class of the same in which the follower is lifted by means of achain wound upon a conical or tapering drum actuated by means of aratchet-wheel, pawl, and lever.

My invention consists in an improved mechanism for operating theratchet-wheel, as hereinafter set forth.

Proceeding to a description of the mechanism whereby these ends areattained, and referring to the accompanying` drawings, A is thepress-body, having the usual end beams, A A', hinged side A, top beam,O, secured by links B, that are hinged to a cross-bar, b, lever D, andpawl H. These parts are all of the ordinary construction and operate inthe usual way.

E is a link embracing the lever D, and serving as a fulcrum-rod for thesame, and connected thereto at its end, and is also attached to theshaft f of the drum I, turning freely thereon.

A link, a, pivoted to the end of the lever D, engages with the teeth ofthe wheel G, and a second link or pawl, E, pivoted to the lever at somedistance from its end, also engages with the teeth of the wheel, asshown. Both links are pressed into engagement with the teeth by means of,a double-leaf spring, c, having arms c c.

One side of the press is hinged, as usual,

at 7L, and the side beams are secured by catches c e.

On the shaftf is keyed a tapering drum, I, around which the chain t',that is attached to the follower-beam J, is Wound. This drum is providedwith a groove, K, of a Width equal to the thickness of the links, and ofa depth equal to the part ot' the link that projects laterally beyondthe plane of the adjacent links, the design being to so conform thegroove to the links that the latter will wrap smoothly on the drum,every other link lying in aplane about at right angles with the shaft,and the others tlatwise on the face of the drum. By these means, as thechain is wound up, each link falls smoothly in place and the chain isnot twisted.

In operation, as the lever D is depressed, the links c and E engage withthe teeth of the ratchet-wheel G, the link a operating to pull and thelink E to push and turn the drum, winding the chain thereon and liftingthe follower.

At first the effective leverage is slight, by reason of the large radiusof the drum at its outer end, and the follower rises swiftly. As thecontents of the press become condensed, the effective leverageincreases, the chain winding then on the small end of the drum.Engaging, as it does, with two teeth ot' the wheel, the leverdistributes its strain, and the danger of breakage is lessened.

What I claim isl. In combination with the lever D, having links E c, andthe spring c, the ratchet-wheel, drum, chain, and follower, as setforth.

2. In combination with the ratchet-wheel and pawl H, the link E', leverD, spring c, having arms c c, and links E a, as set forth.

JOHN SMITH.

Attest:

R. D. WILLIAMS, J oHN C. GITTINGEE.

